Weed-killing composition.



-- sra'rns HILLERY O. OWEN, OF CORPUS CHRISTI, TEXAS.

WEED-KILLING comrosrrron.

No Drawing.

Specification of Letters Patent.

Application med March 1,

1912. Serial No. 080,985.

To all whom it may concern:

Be it known that I, HILLERY O. OWEN, a c1t1zen of the United States, residing at Corpus Christi, in the county of Nueces and State of Texas, have invented new and useful Improvements in Weed-Killing Compo- :ltlOllS, of which the following is a specifica- This invention relates to a new and useful composition of matter desi ed for killing and preventing the growt of weeds and noxious grasses, and is particularly designed for klllmg and preventing the growth of Bermuda and Johnson asses.

The ObJQCt of the invention is to provlde a composition of this character which 1s inexpensive of production and use, which in the proportions employed is harmless to human beings and farm stock, and which, wlnle thoroughly eflicient in action, will permit of the use of the land for cultivation and production of crops within a min' um period after the destruction of the grass or ,weeds.

My improved grass or weed destroying com ositi0 n conslsts of the following mgre rents ln-theproportions stated, to wit:

white arsenic (A8208) 2 lbs. or-32 parts;

I placed in a suitable vessel and water in suflicient uantity added to dissolve the same, the mixture being preferably boiled or heated andagitated until the solid constituents growth of such weeds or are thoroughly dissolved. in the vehicle formed by the plain water and ammonia water. This mixture is then combined with 40 allons, more or less, .of lain water accor ingto' the active strengt desired.

In using the composition, it is sprinkled or spread 'over the grasses or weeds to be de- 'stroyed, and in the course of a few daiys will .efi'ect their destruction and prevent urther asses in the vicinity for a long period. g to the fact that the poisonous ingredients of the mixture 'are'combinedin small roportionsaccording to the volume of t e composition used, the composition ma be employed without danger to human li e or farm stock.

I ,the

Patented Sept. 24, 1912.

Land ridden with grasses of the character described and other noxious .weeds' and asses may be freed therefrom and renered available for cultivation within a period and' by the use of a comparatively small 'quantlty of the composition per acre.

The carbonate of sodium employed serves as a solvent of the chief in oxid, increasing its solubi ity and stability in solution, which action is further promoted and increased by the ammonia water.

I have found by practical demonstration and use that this composition is superior to all others of similar character. employing arsenic, carbonate of sodium and ammonium salts, such as ammonium chlorid, as the form of ammonia employed b me acts in some manner to hmitthe sta ility of the composition when in the soil and e osed to the atmosphere, the composition bem ren-v dered completely innocuous and ine ective within a period of about thirty days, so that within this period after the destruction of monium chlorid or other similar salts are em-' ployed, the composition is maintained in an active state for a period of many months, so that the land cannot be cultivated. My improved composition overcomes this objection, a matter of great importance to those holding limited acreage and where asses and weeds of the character stated ave a tendency to grow.

Having thus described the invention, what I claim as new is 1. A grass and weed destroying composition comprising .an aqueous solution of arsenious oxid, sodiuin carbonate and ammonia.

' 2. A grass and weeddestroying composition comprising an aqueous solution of arsenious oxid, 32 parts, carbonate of sodium, 16 parts and ammonia, 1 part.

In testimon whereof I aflix my signature in presence 0 two witnesses. Y

. HILLERY O. OWEN. Witnesses:

F. P. STARK, F. J. ONzoN.

edient arscnious' asses or weeds the soil may be cultiand planted without liability of ins 

